20152002

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26296638

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 47, 69, 78, 94, 138, 141, 239, 282, 299, 478, 598, 611, 717, 897, 1081, 1222, 1434, 1794, 1833, 2162, 3107, 3243, 3666, 5497, 6214, 6486, 9321, 10994, 11233, 14053, 16491, 18642, 22466, 28106, 32982, 33699, 42159, 67398, 71461, 84318, 142922, 146029, 214383, 258359, 292058, 428766, 438087, 516718, 775077, 876174, 1550154, 3358667, 6717334, 10076001, 20152002]

約数ペア:

[(1, 20152002), (2, 10076001), (3, 6717334), (6, 3358667), (13, 1550154), (23, 876174), (26, 775077), (39, 516718), (46, 438087), (47, 428766), (69, 292058), (78, 258359), (94, 214383), (138, 146029), (141, 142922), (239, 84318), (282, 71461), (299, 67398), (478, 42159), (598, 33699), (611, 32982), (717, 28106), (897, 22466), (1081, 18642), (1222, 16491), (1434, 14053), (1794, 11233), (1833, 10994), (2162, 9321), (3107, 6486), (3243, 6214), (3666, 5497)]